From 68616f23d8bd3802faa91514fe028c88d5f3846a Mon Sep 17 00:00:00 2001
From: Erwan Gouriou <erwan.gouriou@st.com>
Date: Fri, 16 Feb 2024 15:59:44 +0100
Subject: [PATCH] boards: nucleo_h563zi: Enable I2C

Enable i2c1 on nucleo_h563zi (arduino_i2c).
Additionally provide a test configuration for i2c_target_api.

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
---
 .../nucleo_h563zi/arduino_r3_connector.dtsi   |  1 +
 boards/st/nucleo_h563zi/doc/index.rst         |  2 ++
 .../nucleo_h563zi/nucleo_h563zi-common.dtsi   |  6 ++++
 boards/st/nucleo_h563zi/nucleo_h563zi.yaml    |  1 +
 .../i2c_target_api/boards/nucleo_h563zi.conf  |  2 ++
 .../boards/nucleo_h563zi.overlay              | 36 +++++++++++++++++++
 6 files changed, 48 insertions(+)
 create mode 100644 tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.conf
 create mode 100644 tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.overlay

diff --git a/boards/st/nucleo_h563zi/arduino_r3_connector.dtsi b/boards/st/nucleo_h563zi/arduino_r3_connector.dtsi
index cb56530d7e8..fa2515d6d0b 100644
--- a/boards/st/nucleo_h563zi/arduino_r3_connector.dtsi
+++ b/boards/st/nucleo_h563zi/arduino_r3_connector.dtsi
@@ -38,3 +38,4 @@
 
 arduino_serial: &lpuart1 {};
 arduino_spi: &spi1 {};
+arduino_i2c: &i2c1 {};
diff --git a/boards/st/nucleo_h563zi/doc/index.rst b/boards/st/nucleo_h563zi/doc/index.rst
index 9be05804330..e707e81fefa 100644
--- a/boards/st/nucleo_h563zi/doc/index.rst
+++ b/boards/st/nucleo_h563zi/doc/index.rst
@@ -168,6 +168,8 @@ The Zephyr nucleo_h563zi board configuration supports the following hardware fea
 +-----------+------------+-------------------------------------+
 | SPI       | on-chip    | spi bus                             |
 +-----------+------------+-------------------------------------+
+| I2C       | on-chip    | i2c bus                             |
++-----------+------------+-------------------------------------+
 | UART      | on-chip    | serial port-polling;                |
 |           |            | serial port-interrupt               |
 +-----------+------------+-------------------------------------+
diff --git a/boards/st/nucleo_h563zi/nucleo_h563zi-common.dtsi b/boards/st/nucleo_h563zi/nucleo_h563zi-common.dtsi
index 9ffb5c9fc0c..28b72527179 100644
--- a/boards/st/nucleo_h563zi/nucleo_h563zi-common.dtsi
+++ b/boards/st/nucleo_h563zi/nucleo_h563zi-common.dtsi
@@ -72,6 +72,12 @@
 	status = "okay";
 };
 
+&i2c1 {
+	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &rcc {
 	clocks = <&pll>;
 	clock-frequency = <DT_FREQ_M(240)>;
diff --git a/boards/st/nucleo_h563zi/nucleo_h563zi.yaml b/boards/st/nucleo_h563zi/nucleo_h563zi.yaml
index 9e04cd2b7de..0130798df9d 100644
--- a/boards/st/nucleo_h563zi/nucleo_h563zi.yaml
+++ b/boards/st/nucleo_h563zi/nucleo_h563zi.yaml
@@ -22,4 +22,5 @@ supported:
   - usb_device
   - usb
   - rtc
+  - i2c
 vendor: st
diff --git a/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.conf b/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.conf
new file mode 100644
index 00000000000..34b2571d125
--- /dev/null
+++ b/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.conf
@@ -0,0 +1,2 @@
+CONFIG_I2C_STM32_INTERRUPT=y
+CONFIG_I2C_VIRTUAL=n
diff --git a/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.overlay b/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.overlay
new file mode 100644
index 00000000000..02574be9b3e
--- /dev/null
+++ b/tests/drivers/i2c/i2c_target_api/boards/nucleo_h563zi.overlay
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2020 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* I2C bus pins are exposed on the ST morpho header.
+ *
+ *  Bus        SDA               SCL
+ *          Pin   Hdr         Pin   Hdr
+ *  i2c1    PB9   CN7:4      PB8   CN7:2
+ *  i2c2    PB11  CN10:34    PB10  CN10:32
+ *
+ * Short Pin PB9 to PB11, and PB8 to PB10, for the test to pass.
+ */
+
+&i2c2 {
+	pinctrl-0 = <&i2c2_scl_pf1 &i2c2_sda_pf0>;
+	pinctrl-names = "default";
+	status = "okay";
+	eeprom0: eeprom@54 {
+		compatible = "zephyr,i2c-target-eeprom";
+		reg = <0x54>;
+		size = <1024>;
+	};
+};
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
+	pinctrl-names = "default";
+	status = "okay";
+	eeprom1: eeprom@56 {
+		compatible = "zephyr,i2c-target-eeprom";
+		reg = <0x56>;
+		size = <1024>;
+	};
+};